CVE-2026-8259: OS Command Injection in Tenda AC6
CVE-2026-8259 is a medium severity OS command injection vulnerability in the Tenda AC6 router firmware version 2. 0/15. 03. 06. 23. The flaw exists in an unknown function within the /goform/telnet component of the httpd service, where manipulation of the lan. ip argument can lead to command injection. This vulnerability can be exploited remotely without user interaction and requires high privileges. Although an exploit has been publicly disclosed, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
This vulnerability affects Tenda AC6 router firmware 2.0/15.03.06.23 in the httpd component, specifically the /goform/telnet endpoint. An attacker with high privileges can manipulate the lan.ip parameter to inject OS commands remotely. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, no user interaction, and limited confidentiality, integrity, and availability impacts. No official remediation or patch information is currently available, and the vendor has not published an advisory.
Potential Impact
Successful exploitation allows remote OS command injection via the lan.ip argument, potentially enabling an attacker with high privileges to execute arbitrary commands on the device. This could compromise the router's integrity and availability. However, the impact is rated medium due to the requirement for high privileges and limited scope of confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected device's management interfaces and monitor for suspicious activity related to the /goform/telnet endpoint. Avoid exposing the device management interface to untrusted networks.
CVE-2026-8259: OS Command Injection in Tenda AC6
Description
CVE-2026-8259 is a medium severity OS command injection vulnerability in the Tenda AC6 router firmware version 2. 0/15. 03. 06. 23. The flaw exists in an unknown function within the /goform/telnet component of the httpd service, where manipulation of the lan. ip argument can lead to command injection. This vulnerability can be exploited remotely without user interaction and requires high privileges. Although an exploit has been publicly disclosed, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided yet.
CVSS v4.0
Score 5.1medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Tenda AC6 router firmware 2.0/15.03.06.23 in the httpd component, specifically the /goform/telnet endpoint. An attacker with high privileges can manipulate the lan.ip parameter to inject OS commands remotely. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, no user interaction, and limited confidentiality, integrity, and availability impacts. No official remediation or patch information is currently available, and the vendor has not published an advisory.
Potential Impact
Successful exploitation allows remote OS command injection via the lan.ip argument, potentially enabling an attacker with high privileges to execute arbitrary commands on the device. This could compromise the router's integrity and availability. However, the impact is rated medium due to the requirement for high privileges and limited scope of confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected device's management interfaces and monitor for suspicious activity related to the /goform/telnet endpoint. Avoid exposing the device management interface to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-10T15:07:35.155Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a012f49cbff5d86103ef6a2
Added to database: 5/11/2026, 1:22:17 AM
Last enriched: 5/18/2026, 10:49:51 AM
Last updated: 6/5/2026, 6:13:15 AM
Views: 47
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